Ant's place is in a great location - very easy access to Siam Paragon and the Nana BTS station. There are lots of pubs/massage places/ convenience stores around just downstairs. The place was spacious and comfortable for 4 people and security was good. The beds were comfortable and a/c effective (in the rooms where they worked). Ant was a good host and though his phone battery died on the morning we landed and we were not able to contact him, he was very responsive throughout.
On the not so great side, the commercial/residential building where the place was is kinda grungy and unoccupied. The airconditioning in one of the rooms broke down on the first night and we had to sleep outside in the living room where thankfully, the a/c was working and very cold. It was not fixed until the last day of our stay through no fault of Ant, who was responsive and tried his best to get the repairmen to get it fixed. So for most part of the trip, 2 of us had to sleep in makeshift beds in the living room. Though there are many lifts to take you to the apartment, only 1 or 2 of them are active so sometimes the wait can be quite lengthy. Finally, the water pressure of the showers could be better as it was just a trickle when hot water is selected.
All in - i would still say it was very much a value for money stay all things considered.